from tkinter import*

print ('Введите начальную координату X:')
X=int(input())
print ('Введите начальную координату Y:')
Y=int(input())
print ('Введите коэфициент увеличения N:')
N=int(input())
coords=[0,0,10,0,10,10,20,10,20,20,10,20,10,30,0,30]

if N==0 and X>=0 and N<=500 and Y>=0 and Y<=500:
    pass
else:
    if N>0 and 0*N+Y>=0 and 0*N+X>=0 and 20*N+X<=500 and 20*N+Y<=500:
        pass
    else:
        if N<0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
            pass
        else:
            print('Размер фигуры превышает максимальный размер поля')
            exit ()
root=Tk()
root.title('ИТ марафон')
root.geometry('500x500')

canvas=Canvas(bg='white', width=500, height=500)
canvas.pack(anchor=CENTER, expend=1)

canvas.create_polygon(coords[0] *N+X, coords[1]  *N+X,
                      coords[2] *N+X, coords[3]  *N+X,
                      coords[4] *N+X, coords[5]  *N+X,
                      coords[6] *N+X, coords[7]  *N+X,
                      coords[8] *N+X, coords[9]  *N+X,
                      coords[10]*N+X, coords[11] *N+X,
                      coords[12] *N+X, coords[13] *N+X,
                      coords[14] *N+X, coords[15] *N+X)
root.mainloop()
